Ring-spindle bearing.



- No. 729,673. I E EAIENTEE .JUNE 2, 1903 l c. G. E. sE-LZEEEGEE.

EINE SPINDLE BEARING.

` APPLIOATION FILED 20, 1902.

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. PATBNTED IUNB 2, 1903. c. mE. SALZBBRGBR. RING SPINDLE BEARING.APPLIQATIONTIEED H411. 20,1902.4

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@Nite STATES Patented june 2, 1903,

ATENT Finca.

CARL GEORG EMIL SALZBERGER, OF BURGSTEINFURT, GERMANY.

RING-SPINDLE BEARING.

SPECIFICATIONforming part of Letters Patent N o. 729,673, dated June 2,1903. Application filed March Z0, 1902. Serial No. 99,044. (No model.)

To all whom; t 12m/y concern: Be it known that I, CARL GEORG EMIL SALZ-BERGER,a subject of the King of Saxony, residing at Burgsteinfu rt,Westphalia, Germany,

have invented certain new and useful Im provements in Bearings forRing-Spindles, of`

which the following is a specification.

The present invention relates to ring-spindles in which through suitablechannels fresh oil can be always applied to the bearings and the alreadyused dirty oil without mixing with the fresh lubricating-oil isdischarged in to a` hollow screw-plu g, by which this dirty oil can vmeans of a pin h, passing through a slot in be removed during the work.

I will describe this invention with reference to the accompanyingdrawings, in which@ Figure l shows a vertical section throughl thespindle-bearing; Figs. 2 and 3, a part vertical section and partci'osssection of a nonadju'stable ball-bearing, and Fig. 4. a series ofball-bearings arranged one above the other. Fig. 5 shows a modifiedconstruction with a spiral pipe; Fig. 6, a top view of the spiral pipe,and Fig. 7 a cross-section through ther same.

The spindle a is mounted in the spindle` foot h, secured in the knownmanner to the ring-spindle frame.

The oil-chamber o-is of a hollow conical form, the upper end beingcylindrical. 'The upper cylindrical partserves as support to the upperpart of the spindle-bearing` d d.

This consists of two hollow cylinders of dif ferent diameters fittedtogether. The upper cylinder d, which is of greater diameter than thelower cylinder d', fits accuratelyinto thehollow cylinderof .thespindle-foot l2. The upper cylinder d of the spindle-bearing fitsoil-tight on the conical surface e of the spindle-footb. This oil-tightfitting can be effected in any suitable manner. In the upper .part 0l ofthe spindle-bearing the hollow cylwith two conical surfaces, of whichone lies Ain the opposite direction to the lower conical surface of thebearing, while the other surface can act upon the balls in such manner.that ou the downward shifting of the cylin- .der g it presses the ballsagainst the spindle.

The first-named coned surface, which has sharp inclination, prevents thefalling out of the balls on the removal of the spindle, while the secondconical surface, which is inclined to a less degree, effects theadjustment of the ball-bearing. The cylinder g is prevented from turningrelatively to the bearing d by the latter. The adjustment and fixing ofthe cylinder g are effected by means of a screwj. A second step bearingor ball-bearing o is also combined with the lower end of the spinanannular groove p', fitted with balls, and a bottom recess o', alsofitted with balls. The said annular recess pis provided with adischarge-openingp for thelubricating-'oih and the bottom bearing o' isprovided with a passage q for this purpose.

In ord-er that fresh oil may always besupplied nninterruptedly from theoil-chamber cto the spindle-bearings, the spindle-bearing 4die-bearing,such ball-bearing consisting of Y CZ is provided with holes 7c, made aslarge as possible, near the upper ball-bearing surface, either above orbelow the same.

4In order to enable the dirty used oil formed by wear in the bearing (l2to pass away without mixing ywith the fresh lubricating-oil, the uppercylinderY d of the spindle-bearing is formedwith a'number ofvertical'channels Z,

jrunning parallel with the spindlegso that the dirty oil is dischargedat the lower part of the spindle-foot ZJ. The lower part of thespindle-foot b is also formed as a hollow cylinder, provided at its openlower end with a screw-thread. For closing this' open lower end there isprovided a hollowA screw-plug m, the cylindrical upward extension ofwhich fits closely against a coned shoulder' of the spindle-foot. Allthe" separated oil now flows into the hollow screw-plug m and can beremoved froln this during the working; also, a supply of fresh oil canbe introduced into the bearing during the working by means of anoil-spout n, communicating with the oil chamber c.

Figs. 2 and 3 show an arrangement of the ball-bearing withoutadjustment. The balls cannot fall out of the annular channel in thisarrangement, because the said channel is formed with a trapezoidalsection. The balls project sufciently through the open side of thechannel to be maintained in contact with the spindle. The introductionof the balls is effected from above through one or more channels f', thesection of which corresponds exactly with the groove in which the ballsrun, the channel being also so formed that the balls cannotfall out ofthe same. The said channels for the introduction of the balls may be ofany con venient number relatively to the size of the spindle-bearing,and they may either be vertical or be formed in a more or less helicaldirection.

Fig. 4 shows an arrangement of several ball-bearings for the spindlearranged one above the other instead oli' having only one, as atf, Fig.l. The construction would otherwise be the same as described withreference to Fig. l.

It is to be understood that although I have spoken of ball-bearings theballs may be replaced by small rollers or ellipsoidal bodies.

The ball-bearing being employed only with the View to obtain as large afree space as possible may also be replaced by a spiral pipe, whichallows as well a large free space for the oil. rlhis modification isshown in Figs. 5 and '7. Here a spiral pipe is placed in the upper partof the spindle-foot instead of the balls. Notches r allow of the passageof fresh oil through the hole k into the spindle. The bottom bearing maybe arranged at convenience. The rest of the oil conveyance is quitesimilar to that of the iirst construction.

Having now particularly described the nature of my said invention, whatI claim, and desire to secure by Letters Patent of the United States,is-

1. A spindle-bearing composed of a spindle, a surrounding tube formingan intervening oil-passage, upper and lower bearing-surfaces incommunication with said passage, a collecting-chamber, and means forseparately con- 'veying the Waste lubricant from the upper and lowerbearing-surfaces to said chamber, substantially as specified.

2. Aspindle-bearing composed of a spindle having an upper bearing and alower bearing, means for conveying a lubricant to said bearings,acollecting-chambcr,and separate means for conveying the waste lubricantfrom each of said bearings to said chamber, substantially as specified.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

CARL GEORG EMIL SALZBERGER.

Vitnesses:

OTTO KNIG, J. A. RITTERsHAUs.

